221 Human Body Parts Encyclopedia

Blockage of coronary arteries is also called CAD or coronary heart disease. It is the most common cause of illness and death. This disease is a group of problems that occur when the heart and blood vessels are not working the way they should. The disease occurs when our arteries become narrowed due to gradual […]

The human heart works like a pump, which beats about 70 times per minute in normal conditions. The heart acts as a dual pump and is comprised of two sets of chambers, two on the right side and two on the left. They are: right and left auricles and right and left ventricles. It is

Femoral Vein The femoral vein is the largest vein in the inner thighs where the leg muscles join the lower abdomen. It returns deoxygenated blood from the leg to the heart via the iliac veins. This vein is part of the femoral triangle. The femoral triangle includes the femoral vein, femoral artery and femoral nerve.

Iliac Vein The common iliac vein is the vein connected to the pelvic region and the leg. It is composed of the internal iliac vein and external iliac vein. These veins transport deoxygenated blood from the pelvic region and legs to the heart via the inferior vena cava. Artery The abdominal aorta, a major artery

Hepatic Artery The hepatic artery carries blood from the aorta and supplies oxygenated blood to the liver, pancreas and duodenum. The main function of the left and the right hepatic artery is to supply blood (oxygen and nutrients) to the liver. Portal Vein The portal vein is not a true vein as it does not

The sino-atrial node (SA node) is located in the right atrium of the heart. The other popular name of the SA node is the sinus node. It is the impulse generating tissue or precisely speaking a natural pacemaker. It generates the sound of the heart beat. The AV node (atrio-ventricular node) is located between the

Tricuspid &Biscupid Valve The tricuspid valve is the valve found between the right atrium and the right ventricle. It basically forms a boundary between the right atrium and the ventricle. It is also called right atrio-ventricular valve. On the other hand, the bicuspid valve is the valve present between the left atrium and the left

Left Ventricle The human heart has four chambers. Two lower chambers are called ventricles. The left ventricle is connected to the left atrium, on the left side of the heart. It receives blood from the left atrium and pumps it to the aorta. The main function of this ventricle is to pump the oxygenated blood

Pulmonary Artery The pulmonary artery carries deoxygenated blood from the heart to the lungs. It is one of the only arteries that carry deoxygenated blood. It is relatively short and wide in size and shape. It begins from the bottom of the right ventricle of the heart. And then separates into the right and left

Superior Vena Cava Superior vena cava is also referred as precava. It is a large vein, but short in length, located above the heart. The venae cavae are the largest veins in the body. They carry deoxygenated blood to the right atrium of the heart. There is no valve between the superior vena cava and

Jugular vein is a set of four large veins that send back deoxygenated blood from the head and neck to the heart. There are two types of jugular veins: external and internal jugulars. These are located on each side of the neck. The internal jugular lies deep in the neck. It contains blood which has

There are two carotid arteries, located at the front part of the neck. The carotid arteries are the major arteries of the human body. These arteries supply oxygenated blood to the front part of the brain. There are two carotid arteries: one lies on the right side and other lies on the left side of

Capillaries are the thinnest blood vessels, composed of ultra thin layer of tissues. Capillaries are the important link between arteries and veins, as they transfer blood from arteries to veins. The wall of the capillary permits an exchange of food material, gases and waste between the blood and the cells. Capillaries connect to arterioles on

Artery:Arteries are the blood vessels that transfer oxygenated blood from the heart to all the parts of the body, except pulmonary artery, which carries deoxygenated blood. Arteries have thick elastic walls to bear the high pressure of blood, as the heart pumps blood into the arteries. Arteries divide into smaller vessels called arterioles, which link

There is a network of tubes in the human body to circulate blood. This network of tubes is called blood vessels. Blood vessels are thin tubes that are attached to the heart. They are the roads on which the blood as a vehicle flows. The three major types of vessels are arteries, veins and capillaries.